Home / 381,166.14-571,287.66-212,507.36

Finding the Fourth Proportional to 381,166.14, 571,287.66 and 212,507.36

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Solution

The fourth proportional to 381,166.14, 571,287.66 and 212,507.36 is: 318,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,166.14 : 571,287.66 = 212,507.36 : x
  2. Step 2: Convert to fraction form
    381,166.14/571,287.66 = 212,507.36/x
  3. Step 3: Cross multiply
    381,166.14x = 571,287.66 × 212,507.36
  4. Step 4: Simplify right side
    381,166.14x = 121,402,832,427.18
  5. Step 5: Solve for x
    x = 121,402,832,427.18/381,166.14
  6. Step 6: Final answer
    x = 318,503.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.